Risk Assessment of Proximal Contact Loss Between Implant-supported Prostheses and Adjacent Teeth.

Nanjing Medical University

Status: Not yet enrolling

Conditions: Peri-Implantitis and Peri-implant Mucositis

Treatments: Behavioral: plaque index assessment, periodontal probing, Bleeding on probing (BOP), Prosthetic adjacency check, initial occlusal contact, maximum occlusal contact, and filling of the cusps.

Study type: Observational

Funder types: Other

Identifiers

NCT06475313

KY20240613-05

Details and patient eligibility

About

In this study, we collected and analysed the review results of 100 patients over 18 years of age who received implant fixed restorations in the Department of Stomatology of the First Hospital of Nanjing, China. The aim was to investigate the incidence of loss of contact between implant restorations and adjacent teeth and its influencing factors. Our findings may provide better insights for treatment planning and prevention of PCL.

Full description

Food impaction is a common complication after implant-supported restorations. Several studies have reported that more than 40%-66.9% of patients feel food impaction between the implant restoration and adjacent natural teeth. The most common cause of food impaction after implant restoration is the proximal contact loss(PCL), which has been reported to occur in 34% to 65% of cases. The location of PCL creates discomfort and leads to gingival inflammation and even peri-implant bone resorption, which ultimately leads to loosening of the implant. In our long-term clinical observation, not all final restorations suffer from PCL. The occurrence of PCL may be related to a number of factors such as age, gender, functional time, and so on. However, the literature addressing this issue is still limited. In this study, we collected and analysed the review results of selected patients who underwent implant-supported restorations in the First Hospital of Nanjing, China, to investigate the incidence of PCL between the implant restorations and the adjacent teeth adjacent , and the factors influencing it. Our findings may provide better insights for treatment planning and prevention of PCL.

Enrollment: 100 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• (1) Patients over the age of 18, can fully understand the nature of the proposed and be able to sign a consent form.
• (2) patients who underwent dental implant surgery and delivered prostheses for more than 3 months in Nanjing First Hospital.

Exclusion criteria

• (1) The implant site or adjacent teeth were severely injured and the adjacent teeth were extracted;
• (2) the same quadrant orthodontic or splint treatment;
• (3) the prostheses have been removed due to failure or need further treatment;
• (4) implant-supported prostheses in both mesial and distal sites;
• (5) the adjacent teeth were directly or indirectly fixed with the implant-supported prosthesis;
• (6) patients with missing clinical records of PD, PCR and BOP.
• (7) The prosthetic prosthesis with implant-supported prosthesis was delivered for less than 3 months in Nanjing First Hospital.